The wide-ranging impact of Jerad Eickhoff’s decision would not be immediately realized.

His determination to get back on the mound and help the Phillies as they eyed a possible postseason run became a blessing in disguise. In late July, Eickhoff considered undergoing what would have been a minimally invasive but likely season-ending surgery to fix his lingering carpal tunnel issue, which dated back to the 2017 season.

Following his surgery in Philadelphia on Oct. 1, the day after the Phillies’ season ended, Eickhoff learned that delaying the operation yielded an unexpected but important discovery. The type of procedure Eickhoff chose played a key role. He was presented three surgical options ranging from most to least intrusive: a full open carpal tunnel release procedure, a miniature open procedure and an endoscopic version of the surgery. Eickhoff opted for the miniature open procedure. He wanted to avoid the most intensive option, but also had time...